if you need technical support on your original forum, i would suggest you open a ticket at http://members.vbulletin.com/members...ontactform.php

... i would recommand to not give all your site infos to anybody in pm if they are not having a great reputation here, we have a rush or scammers lately...

basically, what i see is not related to your database but a file edit... because we see part of the content of the index.php file itself, and this is not supposed to happen in a non-customized script.

if you have the backup of your site from before you start deleting content, this would be good to keep it... you can't drop the PMs without problem because they are related to a bunch of details, they have to be deleted from the inside of the system.... adminlogs btw are not a problem, you can empty these tables anytime.

i know your forum, i think i am even registered to it... so it's sure i would be glad to see it back without problems.. --- i do not remember what was the topic though... i visited it last month if i remember right!